A network device, method, and mobile device are directed towards enabling a mobile device user to archive a text message threaded conversation with another conversation participant. text messages sent from the mobile device may be replicated by a server component, whether the text message is a reply message or an incoming message. The replicated text message may then be sent to an identified personal computing device's network-based messaging archive. In one embodiment, the messaging archive may be an outbox archive for text messages. As described, a text message being sent to the mobile device from the other conversation participant may also be replicated and archived in a network-based inbox archive for text messages on the identified personal computing device. In one embodiment, the archived text messages may be displayed to the user on the personal computing devices as threaded conversations.